Thuntard 

someone who believes that the world is going to end in the next ten or so years due to "Climate Change".

Greta: "How dare you, you stole my future".
Hansel: "Shut-up Greta, you uneducated thuntard."

Alexandria: "Oh no! The World is going to end in 12 years. Orange man bad."
Pepe: "Here we go again. How did a complete thuntard like her get elected to Congress?"

Thuntard by RoverIAC October 1, 2019

Twuntard 

A combo of twat, cunt, and retard. Reserved for a very special king of idiot, worse even than an assclown.

Sit the fuck down, twuntard.

Twuntard by JonHodgson February 10, 2010

Thugtard 

1. A Retard who dress like a thug and displays thugish traits.

Adam: I'm a gangster yo!
Brian: Dude you ride the short bus.
Adam: Fo shizzle my nizzle!
Brain: You stupid thugtard, put your helmet back on.

Thugtard by Paul, Curtis, and Adam June 1, 2005